Q. 11 The direction of the reaction at support B of a truss shown in below figure will be
A. West of North
B. East of North
C. East of South
D. West of South
B. East of North
Q. 12 A beam of length L supported on two intermediate rollers carries a uniformly distributed load on its entire length. If sagging B.M. and hogging B.M. of the beam are equal, the length of each overhang, is
A. 0.307 L
B. 0.107 L
C. 0.207 L
D. 0.407 L
C. 0.207 L
Q. 13 The unit of work or energy in S.I. units is
A. Kilogram meter
B. Newton
C. Pascal
D. Joule
D. Joule
Q. 14 The shear force on a simply supported beam is proportional to
A. Sum of the transverse forces
B. Displacement of the neutral axis
C. Sum of the forces
D. Algebraic sum of the transverse forces of the section
D. Algebraic sum of the transverse forces of the section
Q. 15 Shear deflection of a cantilever of length L, cross sectional area A and shear modulus G, subjected to w/m u.d.l., is
A. (3/2) (Lw/GA²)
B. (3/4) (L²w/GA)
C. (3/2) (L²w/GA)
D. (2/3) (L3w/GA)
C. (3/2) (L²w/GA)
16. Which of the following is not the unit of distance?
A. Micron
B. Angstrom
C. Light year
D. Milestone
D. Milestone
Q. 17 In a bar of large length when held vertically and subjected to a load at its lower end, its own- weight produces additional stress. The maximum stress will be
A. At the central cross-section
B. At the lower cross-section
C. At the built-in upper cross-section
D. At every point of the bar
C. At the built-in upper cross-section
Q. 18 The value of Poisson’s ratio always remains
A. Equal to one
B. Less than one
C. Greater than one
D. None of these
B. Less than one
Q. 19 The B.M. diagram of the beam shown in below figure, is
A. A trapezium
B. A rectangle
C. A triangle
D. A parabola
B. A rectangle
Q. 20 Which of the following is not a vector quantity?
A. Acceleration
B. Weight
C. Velocity
D. Force
B. Weight
